Crushing attachment for centrifugal machines



(No Model.)

B. O. KNIGHT.

GRUSHING ATTACHMENT FOR CBNTRIFUGAL MACHINES.

3 8 O0 1 2 .b e P d 6 b n e M E P i IT 1 d E D 0 1 l 6 1 .2 F 7 2 0 N I: INVZ'NTOR fw 50W WITNESSES i V amzm 005W UNITED STATES PATENT OFFICE.

EDWARD C. KNIGHT, OF PHILADELPHIA, PENNSYLVANIA.

CRUSHING ATTACHMENT FOR CENTRIFUGAL MACHINES.

SPECIFICATION forming part of Letters Patent No. 272,710, dated February 20, 1883. Application filed October 23, 1882. (No model!) To all whom it may concern:

Be it known that I, EDWARD O. KNIGHT, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented a Crushing Attachment for Centrifugal Machines, of which the following is a specification.

My invention consists of the combination of centrifugal machines with crushing-rollers and certain ducts or passages, described hereinafter, whereby sugar or other material from which liquids have been extracted by the said centrifugal machines may be conducted directly from the latter to the rolls, the objects of my invention being economy in timev and labor and the rapid cooling of the sugar, as hereinafter explained.

In the accompanying drawings, Figure 1 is avertical section of a centrifugal machine with my improvement, and Fig. 2 a front View of Fig. 1

A and A are two centrifugal machines, erected above the floor B in the manner usually adopted in sugar-houses. As each centrifugal machine is of the ordinary construction, it will suffice to remark here that there is the usual cylindrical shell or safety-cage, D, having an outlet, (1, for the escape of the sirup,

the basket E, secured to the rapidly-rotated spindle F, and having at the bottom a central opening, b, for the escape of the sugar when, after the extraction of the sirup and the raising of the valve d, the sugar is detached from the sides of the cage.

It has been the common practice to permit the sugar passing through the bottom of the cage to fall through an opening in the floor B onto the floor below. In most cases the sugar which is thus discharged from the centrifugal machine has to be crushed by and between rolls before it is in a marketable condition, and the plan has been to convey it from the floor onto which it has fallen to an upper floor, and to there subject it to the action of power-driven rolls.

The main object of my invention is to obviate the necessityof resorting to this costly and time-consuming handling of the sugar-an object which I attain in the following manner: To the beams of the floor B, I secure hangers G, in which are hearings for the journals of rolls H H, the latter being rotated in the direction of their arrows. Tire sugar from the centrifugal machines is directed to these rolls by ducts, which may be varied in construction, but which consistin the present instance of boxes I 1, one situated below each centrifugal machine, a chute, J, terminating below in a contracted opening immediately above the rolls, and a pipe,m, situated between thejoists of the floor, for directing the sugar from the boxes of two machines to the chute J. I prefer to thus direct the sugar from two adjoining centrifugal machines to one chute; but this is not essential to the main feature of my invention-forinstance, there may be one direct duct for each centrifugal machine.

Where centrifugal machines are arranged in rows--and this is generally the case in sugar-houses-it is best to arrange the ducts in the manner described, so that one pair of rolls may crush the sugar derived from two machines, another pair of rolls, coupled to the first, crushing the sugar derived from another pair of machines in the same row, and so on. The character of the ducts will depend in a measure upon the arrangement of the crushing-rolls in respect to the centrifugal machines and the opportunities afforded by the joists of the floor. There is another advantage in immediately crushing the sugar as it leaves the centrifugal machines, for, the lumps being at once disintegrated, the sugar falls to the floor in a finely-separated condition, and in falling is more rapidly cooled than if it fell in coherent masses.

While fixed structures may constitute the ducts, Iprefer to make them in part of chutes J, each chute being adjustable in guides n a, secured to the joists, so that it can be moved forward in the direction of the arrow, Fig. 1, when the sugar Will fall clear of the rollers to the door below, for there are classes of sugar which do not require to be crushed.

Although I have referred to my invention as applied to the treatment of sugar, it may be v adopted with advantage in connection with centrifugal machines used for extracting liquids from other substances.

I claim as my invention- 1. The combination of a centrifugal machine or machines and crushing-rolls below the same with a duct or duets for directing the sugar In testimony whereofI have signed myna-me from the said machine or machines to the rolls, to this specification in the presence of two subto substantially as set forth.

2. The combination of n-eentrifugalmachine or machines, crushing-rolls, a duct or duets for receiving the sugar, and. an adjustable chute for directing the sugar to the rolls or clearof the same, substantially as set forth.

scribing witnesses.

EDWARD G. KNIGHT.

Witnesses HARRY DRURY, HARRY SMITH. 

